Stereotactic and functional neurosurgery · 2022
Botulinum Toxin as an Effective Treatment for Trigeminal Neuralgia in Surgical Practices.
СтатьяПоддержка NIH: внешняя программаНазвание и аннотация: Перевод в очереди
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Tangney Thomas, Heydari Ehsaun S, Sheldon Breanna L, Shetty Amit, Argoff Charles E, Khazen Olga, Pilitsis Julie G
Аннотация
BACKGROUND: Trigeminal neuralgia (TN) is a common cause of craniofacial pain with many medical and surgical therapies, all of which are imperfect. We examine the use of botulinum toxin type-A (BTX-A) as an intermediary approach in surgical practices.
METHODS: We retrospectively identified TN patients seen by both pain neurology and neurosurgery at our center. Demographics were collected. Pain intensity was assessed using the numerical rating scale (NRS) and compared from baseline to after BTX-A treatment via paired t test. Responder status was assessed, and success of BTX-A was determined for each cohort. Doses of common medications were compared between baseline visit and the most recent BTX-A administration visit.
RESULTS: Thirty-one patients underwent BTX-A therapy for TN, 24 (77%) female and 7 (23%) male. Mean age was 62.5 ± 3.1 years and 29 (94%) identified as white. When divided into cohorts according to indication, 11 (35%) failed prior TN surgery, 9 (29%) either declined surgery or were poor surgical candidates, 4 (13%) had multiple sclerosis, 4 (13%) had trigeminal neuropathic pain, and 3 (10%) had atypical TN with pain in additional dermatomes outside the trigeminal distribution. Significant reductions in NRS from baseline to following initial BTX-A treatment were seen in the declined/high risk for surgery (p = 0.004) and those who failed prior TN surgery (p = 0.035) groups. No significant variation in demographics was found between any two groups (p > 0.05 for all). Finally, there was no significant reduction in total daily dose of gabapentin, carbamazepine, oxcarbazepine, baclofen, or lamotrigine in BTX-A responders (p > 0.05 for all).
DISCUSSION: Indication is an important predictor for BTX-A, with classical TN patients exhibiting the highest response rates. This research highlights the viability of BTX-A as an important tool in the arsenal of providers seeking to treat TN in a minimally invasive manner.
METHODS: We retrospectively identified TN patients seen by both pain neurology and neurosurgery at our center. Demographics were collected. Pain intensity was assessed using the numerical rating scale (NRS) and compared from baseline to after BTX-A treatment via paired t test. Responder status was assessed, and success of BTX-A was determined for each cohort. Doses of common medications were compared between baseline visit and the most recent BTX-A administration visit.
RESULTS: Thirty-one patients underwent BTX-A therapy for TN, 24 (77%) female and 7 (23%) male. Mean age was 62.5 ± 3.1 years and 29 (94%) identified as white. When divided into cohorts according to indication, 11 (35%) failed prior TN surgery, 9 (29%) either declined surgery or were poor surgical candidates, 4 (13%) had multiple sclerosis, 4 (13%) had trigeminal neuropathic pain, and 3 (10%) had atypical TN with pain in additional dermatomes outside the trigeminal distribution. Significant reductions in NRS from baseline to following initial BTX-A treatment were seen in the declined/high risk for surgery (p = 0.004) and those who failed prior TN surgery (p = 0.035) groups. No significant variation in demographics was found between any two groups (p > 0.05 for all). Finally, there was no significant reduction in total daily dose of gabapentin, carbamazepine, oxcarbazepine, baclofen, or lamotrigine in BTX-A responders (p > 0.05 for all).
DISCUSSION: Indication is an important predictor for BTX-A, with classical TN patients exhibiting the highest response rates. This research highlights the viability of BTX-A as an important tool in the arsenal of providers seeking to treat TN in a minimally invasive manner.